Show pictures as marker on 3d map

[joergreichert]

• http://maptalks.org/examples/en/style/image-marker/#style_image-marker
• http://maptalks.org/examples/en/3d/marker-altitude/#3d_marker-altitude
• http://maptalks.org/examples/en/ui-control/ui-geo-infownd/#ui-control_ui-geo-infownd
• http://maptalks.org/examples/en/3d/polygon-altitude/#3d_polygon-altitude
• https://github.com/maptalks/maptalks.three